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Expansion joint clamping performance measuring device

A measuring device and technology of expansion joints, which are applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of reducing the measurement accuracy of the clamping performance of expansion joints, save installation time, reduce rotation, and improve tensile accuracy. Effect

Pending Publication Date: 2022-04-08
江苏省交通工程集团百润工程检测有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem that the measurement accuracy of expansion joint clamping performance is reduced due to uneven tension at both ends of the rubber strip, this application provides a device for measuring the clamping performance of expansion joints

Method used

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Embodiment Construction

[0033] The following is attached Figure 1-5 The application is described in further detail.

[0034] The embodiment of the present application discloses a device for measuring the clamping performance of expansion joints. refer to figure 1 , a clamping performance measurement device for expansion joints includes a body 1, a drive mechanism 4 and a clamping assembly 3 are installed on the body 1, the clamping assemblies 3 are arranged in pairs, and a tension sensor is connected between the clamping assembly 3 and the rubber strip 6 5. The clamping component 3 is used to clamp the two ends of the rubber strip 6 respectively, the tension sensor 5 is used to measure the tension on the rubber strip 6, and the driving mechanism 4 is used to drive the clamping component 3 to move towards each other, and then the rubber Both ends of the strip 6 are stretched synchronously to improve the stretching uniformity of the rubber strip 6 , thereby improving the measurement accuracy of the ...

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Abstract

The invention relates to an expansion joint clamping performance measuring device, and relates to the technical field of expansion joint clamping performance measurement, the expansion joint clamping performance measuring device comprises a machine body, the machine body is slidably connected with at least one pair of sliding seats, each sliding seat is provided with a clamping assembly used for clamping a rubber strip, and each sliding seat is provided with a tension sensor used for measuring the tensile force of the rubber strip; the machine body is provided with a driving mechanism used for driving the sliding seats to slide oppositely. The driving mechanism drives the sliding seats to slide oppositely, the clamping assembly clamps the rubber strip, then the sliding seats drive the two ends of the rubber strip to be synchronously and reversely stretched, the tension sensor records the tension of the rubber strip, the two ends of the rubber strip are evenly stressed, and the possibility that the measurement precision of the rubber strip is reduced is effectively reduced.

Description

technical field [0001] The present application relates to the technical field of clamping performance measurement of expansion joints, in particular to a measuring device for clamping performance of expansion joints. Background technique [0002] The expansion joint is an important part of the expansion device of the bridge. The rubber strip inside the expansion joint mainly provides waterproof function for the bridge, preventing rainwater and snow water on the bridge surface from flowing into the bridge through the expansion device. If the clamping performance of the expansion joint does not meet the requirements, the rubber strip will fall off or crack during the stretching process, which will cause water seepage in the bridge and affect the durability and safety of the bridge structure. [0003] During the clamping measurement of expansion joints, two extensometers are usually used to clamp the two ends of the rubber strip respectively, and then stretch the two ends of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08
Inventor 李学峰谢忠阳王秀丽吴万龙吴振宏
Owner 江苏省交通工程集团百润工程检测有限公司
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